Nasal oral cannula



FIG. 1 is a top perspective view of the nasal oral cannula of the present invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side elevation view thereof.

Broken lines are used to show portions of the nasal oral cannula forming no part of the claimed design. 

CLAIM The ornamental design for a nasal oral cannula, as shown and described. 